Grid for pickers, openers, and allied machines.



F. D. LANGEViN,

GRID FOR PICKERS, OPENERS, AND ALLIED MACHINES.

APPLmTmN man 7, 2915 1,182,575. Puwnted May 9,1916.

UTED STAT ra rnn'r nron FELIX D. LANGEVIN, F LOWELL, MASSACHUSETTS, ASSIGNOR T0 SACO-LOW'ELL sisters,

I 0! BOSTON, massacnusn'r'r s, A CORPORATION or MASSACHUSETTS.

GRID FOB. menses, OPENERS, AND ALLIED MACHINES.

T 0 all whom it may concern:

Be it known that I, FELIX D. LANGEVIN, of Lowell, in the county of Middlesex'and State of Massachusetts, a citizen of the 'United States, have invented a new and useful Improvement in Grids for Pickers, Openers, and Allied Machines, of which the following is a full, clear, and exact description, reference being had to the accompanyand in whichthe. working'ed'ge of thebars maintains a constant position withrelation to the path of the heater or other working part, whatever the adjusted position of "the bars may' be, the object being to improve the eiii'ciency of the machine.

' The invention can best be seen and an.

derstood by reference to the drawings, in

' which Figure 1 is a side elevationpof a grid embodying my invention, and Fig. 2 Is also 'a side elevation of the grid with the bars thereof shown in a different adjusted posi' ion from that shown in Fig. 1.

1 represents the curved side or cheek which supports the en'ds of the bars at one side of the grid, the other side or cheek (not shown) supporting the opposite ends of the bars, being an exact duplicate. lhe sides are adjustably secured to the frame of the machine in the usual manner.

2 represents: the bars the ends of rest within sockets 3 formed in the side The. bars are held within the sockets hymeans of a capping strap 4 which extends over the open ends of the sockets,-:

'clo'sing them, and is secured to -the side piece. I p

5' represents the beater.

In the drawings some of the bars are shown as fixed bars. Inasmuch as the present invention pertains only to the adjust able bars, the following description will pertain only to these bars, or, in other words. to the mounting and control thereof. The

" sockets containing the ends of the adjustable bars have each a generally reetan lar form,

6 and Tindicating respectively t e opposite Specifieationof Letters Patent.

the angles formed by the capping strap .thespaced distance hetweenithe Patented May 9.1%)16.

Application filedseptember 7, 1915. Serial No. 48,197.

sides of each of these sockets, and 8 the bottom of the socket. The open ends of the sockets are closed by the cappingstrap as aforesaid. 4

v The bars: themselves are made to have a generally triangular cross section, the broadened .or base portion of the bar being snugly contained between the two sides of the socket adjacent the capping strap with the face 10 of the bar bearing against this strap substantially as shown in. Fig. 2, that is, when the bars are occupying their normal position.

11 represents the working edges of the bars, and itwill he observed that these edges '26 lie within the angles formed by'thecapping strap i and the sides 6 of the sockets. I i

12 represents the opposite corner edges of the bars. These edges lie normally within F5 the sides 7 of the sockets.

14 and 15 represent, respectiveiya posite converging sides of the her project down into the socket, and? end which lies adjacent the bottom c socket but so far removed therefrom a. from the sides of the socket as wiil permit of the bars being moved freely,

With the bars thus secketed and arranged, the faces 10 thereof: and consequently the working edges of the. bars lying within a common curved plane, will occupy such proper position relatively tothepath of beater as will depend upon the adjn position of the side pieces or checks Fig. 2). The bars willv also occnjgiy mum spaced relationship to each o'the space hetween'the bars heing-determ the'distance between the won ofone bar and the adjacent her next to it. The object" out changing the tion ofth--w0rkinf edges of the bars Wltkl' 1@iflti0ll' The-path of the heater, or, in other words changingdrhfi that position of the workingoedge's of'the bars with relation to the, path of the beater which has been initially obtained -by ad justment of the sides or cheek pieces. This effect is obtained by turning the bars within 65 their sockets, each around its working edge as a center, when the faces 10 of the-m spective-bars wili draw out of the normal curved path in which they were initially disposed andoccupy positions parallel to 1w one another as shown in Fig. 1. In attaining'such positions the edge 12 of each adjacent bar Willi-draw downwardly away from the working'edge of the bar next to 5 it, thereby increasing the distance between the bars but without changing the position of the working edges of the bars w th relathe capping strap 4 and side 6 of the socket The dog is secured to the side piece by against which the workmg edges of the bars have bearing.

fiche adjustable bars are simul aneously adjusted and afterward held securely in their adjusted positions by 'means of dogs '1.8;. secured 'to the side p.1eces.' In other wot'ds,- ,two dogs are employed, one secured to' each side piece, of which but one is shown, theother being an exact duplicate as before .eulplai'ned. The dog 18'has a toothed edge facing. the adjustable bars and is arranged whereby the ends 16 of the bars will pro- .ject into the openings ,19 between the teeth.

:means of a bolt 20 which passes through a slot 21 in. the dog. The movable retention of the dog is further obtained by means'of pins 22 projecting from the side pieces and entering slots 23 in the dog on either side of the bolt connection. .The slots 21 and 23' permit of the dog being moved backward and, forward for performing the adjustment of the-bars, after which the dog and bars held by it are fixed in their adjusted position by the tightening of the bolt connection. It should be further explained that the slots 21 and 23 are so formed in the dog that as the dog is moved back and forth for'adjustably moving the bars it will have suchmovement as willpermit of the bars being turned by the dog around their working edges, the dog adapting itself to the changed position of the bars with a further capability of fixture in any'position to which it may be moved within the range of adjustment of the bars.

' Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United -States: v V

1. A grid for pickers, openers and allied machines comprisinga series of spaced grid bars adjustable for varying the amount of spacebetween said bars, each of said bars presenting a working edge, and means whereby the working edges of saidbars may be held to maintain a constant position during the adjustment thereof.

2 A grid for pickers, openers and allied machines having a series of spaced adjust-.

able bar's, each presenting a working edge, and means for controlling and otherwise effecting the adjustment of -sa1d bars for 'ment thereof for varying the space between the same as aforesaid and at the same time maintaining the working edges thereof in a constant position.

4. A grid for pickers, openers and allied machines having side pieces and a series of spacedgrid bars mounted to turn upon said side pieces for varying the distance between said bars, each of said bars presenting a working edge and being otherwise formed, arranged and maintained whereby the bars may. be turned within said side pieces for varying the spaced distance between the same without changing the position of the working edges of said bars.

5. A grid for pickers, openers and allied machines comprising a series of spaced bars adjustable forvarying the distance between said bars, each of said bars having a face presenting a working edge, and means whereby the relative positions of the faces of said bars may be changed for effecting the spaced adjustment thereof Without changing the position of the working edges of said bars.

6. A grid for pickers, openersand allied machines comprising a series of spaced bars adjustable for varying the distance between said bars, each of said bars having a face presenting a working edge, and means for supporting and otherwise controlling said bars whereby the faces of the bars may be turned around their working edges for obtaining the spaced adjustment of said bars.

.7. A grid for pickers, openers and allied machines having side pieces and a series of spaced grid bars mounted to turn within said side pieces for varying the spacing between said bars, each of said bars-having a face presenting a working edge, and means for controlling and otherwise retaining said bars whereby they may be turned within said side pieces for effecting the spaced adjustment thereof and the faces of .said' bars Itjurned around the working edges of-said ars.

V 8. A grid for pickers, openers allied of said bars may be maintained in a cohstant position and the face of each of said bars of the series turn toward or away from the Working edge of the next adjacent bar.

9. A grid for pickers, openers and. allied machines having side pieces and a series of spaced'grid bars mounted to turn thereon for varying the spaced relationship ofsaid bars, said bars being substantially triangular in cross section and having a face presenting a Working edge, and means for controlling and otherwise maintaining said bars whereby they may be turned 'Within said side pieces and each of said bars be turned around its Working edge for varying the podtions of the faces of said bars with re lation to the working edges of successive bars.

10. A grid for pickers, openers and allied machines having side pieces and a series of spaced grid bars mounted to turn there on for varying the spaced relationship of said bars, said bars being substantially triangular in cross section with converging sides and a face presenting a Working edge, means for retaining said bars Within said side pieces whereby they may be turned for etfecting the spaced adjustment thereof, each around its working edge, and a dog assisting in the retention of said bars and movable for effecting a simultaneous adjustment thereof substantially as described.

FELIX D. LANGEVIN. \Vitnesses:

JOHN K. \VHiT'rIER, JOHN T. TUCKER. 

